Berkebile Oil 2 + 2 B3A Clear RTV Instant Silicone Gasket Maker - 8 oz. Clear RTV silicone instant gasket maker: bonds, seals, caulks, and insulates. resists high pressure and temperatures from -65o to 500of Seals windshields, glass, lights, rubber hose, and insulates wiring; Bonds glass, plastic, metal, leather, concrete, etc Typical uses: windshields, tail lamps, door frames, electrical connections, roofs, and vinyl tops